blk-mq: code clean-up by adding an API to clear set->mq_map
set->mq_map is now currently cleared if something goes wrong when
establishing a queue map in blk-mq-pci.c. It's also cleared before
updating a queue map in blk_mq_update_queue_map().
This patch provides an API to clear set->mq_map to make it clear.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/block/blk-mq-pci.c b/block/blk-mq-pci.c
index e233996..db644ec 100644
--- a/block/blk-mq-pci.c
+++ b/block/blk-mq-pci.c
@@ -17,6 +17,8 @@
#include <linux/pci.h>
#include <linux/module.h>
+#include "blk-mq.h"
+
/**
* blk_mq_pci_map_queues - provide a default queue mapping for PCI device
* @set: tagset to provide the mapping for
@@ -48,8 +50,7 @@ int blk_mq_pci_map_queues(struct blk_mq_tag_set *set, struct pci_dev *pdev,
fallback:
WARN_ON_ONCE(set->nr_hw_queues > 1);
- for_each_possible_cpu(cpu)
- set->mq_map[cpu] = 0;
+ blk_mq_clear_mq_map(set);
return 0;
}
EXPORT_SYMBOL_GPL(blk_mq_pci_map_queues);